Science Chapter 16
Terms in this set (43)
When EVAPORATING a liquid, you add heat until the liquid reaches a tmp at which it changes to bubbles of gas below its surface.
Most solids are NONCRYSTALLINE.
The MELTING POINT is the same temp as the freesing point for a substance.
Increasing temp DECREASES a fluid's viscosity.
The particles that make up a solid move ___ than do the particlws that make up a gas.
According to ___, if you decrease the volume of a container of gas and hold the temp constant, the pressure of the as will increase.
Whether an onject will sink or float in a fluid is determined by ___.
Matter that has definite volume but no definit shape is a ___.
Most matter ___ when heated.
The idea that matter is made up of small particles that are in a constant motion is ___.
the kinetic theory of matter
Increasing ___ raises the boiling point of a liquid.
Matter with no definite volume and no definite shape is a ___.
According to ___, the volume of a gas increases with increasing temp, as long as pressure does not change.
A fluid's resistance to flow is called __.
According to __, as the velocity of a fluid increases, the pressure exerted by the fluid decreases.
Bernoulli's Principle explains why __.
The amount of energy needed to change a material from a solid to a liquid is called rhe heat of ___.
As the twmp of a gas increases, the volume of the gas will __ if the pressure remains the same.
Hydrolic machines work by applying __.
The most common state of matter in the universe is __.
The theoretical point at which all molecular motion stops is called __.
As the volume of a gas decreases, the pressure of the gas will ___ if the temp remains the same.
A gas-like mixture with no definite shape or volume that is made up of positively and negatively charged particles is a ___.
Compared to most substances, water is unusual because it ___ when is goes from the liquid to sold state.
As a sample of matter is heated, its particles ___.
move more quickly
According to ___, pressurw applied to fluid is transmitted unchanged throughout the fluid.
Matter that has a definite volume and a definite shape is a __.
The amount of energy needed to change a material from liquod to gas is called the heat of ___.
Matter in which atoms are tightly held in place is a ___.
According to ___, the buoyant force on an object in a fluid is equal to the weight of the fluid displaced by the object.
Matter in which the particles arw free to move in all dorections until they have spread evenly throughout their container is a ___.
The eneegy needed to change a liquid to a gas is the...
Heat of Vaporization
The energy needed to change a solid to a liquid is the...
Heat of Fusion
The SI unit of pressure is the..
Matter found in stars is in the ___ phase.
Solids that do not have a crustal form or definite melting point are called ___.
In comparing plasma to a solid, a liquid, and a gas, plasma is most similar to __.
State Pascal's principle. Does it apply to air?
Pressure applied to a fluid is transmitted with the same pressure throughout that fluid. And yes because air is a fluid.
State Boyle's law. Does it apply to water vapor?
With constant temp, decrease the volume of a gas, increases the pressure. And yes because water vapor is a gas.
Explain what will happen, according to Archanedes' principle, if the bouyant force of a fluid is less that the weight of an object placed in the fluid.
It will sink.
Which of the states of matter can you force into a smaller volume?
Gas and plasma bc there is still room between particles.
Will more or less of a large ship be above water in a narrow river compares to the open ocean?
Neither, it will float just as high bc height depends on the amount of water displaced.
What are the melting point and boiling point of water on the Kelvin temp scale?
273 K and 373 K